docTOP 100 higher exposed flight deck crew
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TOP 100 higher exposed flight deck crew
RADIATION EXPOSURE TO AIRCRAFT CREW French Regulations Practical Experience and Consequences at Air France Gérard DESMARIS occupational physician Air France Jean François BOTTOLLIER-DEPOIS IRSN ITALIAN CONGRESS OF AEROSPACE MEDICINE FLORENCE september 5 th 2007 ICRP 60 1991 : Recommendations of the International Commission on Radiological Protection Two novelties : -To take into account natural sources of ionising radiation when occupational exposure -To lower the limits of exposure Public < 1mSv /year Exposed workers < 100mSv / 5 successive years B category 1 to 6 mSv / year A category > 6 mSv / year SIEVERT PROJECT Système d’Information et d’Evaluation par Vol de l’Exposition au Rayonnement cosmique dans les Transports aériens Computerized System for Flight Assessment of Exposure to Cosmic Radiation in Air Transport • • • • • DGAC French General Directorate of Civil Aviation IRSN French Institute for Research and Nuclear Safety PARIS – MEUDON Observatory IFRTP French Institute for Research and Polar Technology Air France 3D + TIME Route with corresponding date map of dose rates 2000-2003 CARI 6 2004------- EPCARD 3 updated by IRSN 4 4 4 Pass through points Way points Cells Altitude 1000 feet from ground to 80 000 feet Latitude 2° Longitude 10° EXPOSURE AF 068 CDG - LOS ANGELES RADIATION STORMS taken into account since 2000 - July 10 th 2000 April 15 th 2001 January 20 th 2005 December 12 th 2006 RADIATION STORMS PEAK FLUX Severe S4 1 mSv/hour 12 000 m Extreme S5 10 mSv/hour 12 000 m February 23 th 1956 80 mSv/hour 18 000 m SUPERSONIC CONCORDE • January 9 th 1997 amber alarm • Radiameter 1 mSv/hour FL500 16.000 m 10 mSv/hour FL550 17.600 m • Return to FL 500 • PARIS-NEW YORK 0,5 mSv (X4) TOP 100 higher exposed flight deck crew 6 5 mSv 4 1th 3 Average 100 th 2 1 0 2001 YEAR 1th Average 100 th Dr G.Desmaris, C.Chu infirmière Avril 2007 2002 2001 3,328 3,0479 2,9155 2003 2004 2002 3,7762 3,2809 3,1097 2005 2003 3,4835 3,109 2,9573 2006 2004 3,9857 3,3573 3,1893 2005 4,3861 3,7751 3,6098 2006 4,8904 3,98 3,8002 TOP 100 higher exposed cabin crew crew 6 m Sv 5 4 1th 3 Average 2 100 th 1 0 2001 YEAR 1th Average 100 th Dr G.Desmaris, C.Chu infirmière Avril 2007 2002 2001 3,1535 2,9767 2,9055 2003 2004 2002 3,7441 3,1621 3,0621 2005 2003 4,0629 3,3179 3,1612 2006 2004 4,0629 3,7701 3,5869 2005 4,2482 3,9815 3,8256 2006 4,7484 4,3345 4,1602 100 higher exposed cabin crew working area group 80 70 60 50 40 30 20 10 0 AMERICA ASIA AFRICA CARIBBEAN INDIAN OCEAN 2001 2002 2003 2004 2005 2006 Dr G.Desmaris, C.Chu infirmière Avril 2007 TOP 100 higher exposed flight deck crew 100 PNT LES PLUS EXPOSES REPARTITION PAR DIVISION DE VOL 120 NBRE DE PNT 120 100 100 80 80 B777 60 B747 40 A340/330 20 B777 0 60 2001 2002 2003 2004 2005 B747 2006 ANNEE A340/330 40 ANNEE 2001 46 54 0 B777 20 B747 A340/330 2002 100 0 0 2003 96 3 1 2004 77 14 8 2005 97 0 3 2006 83 2 15 0 2001 Dr G.Desmaris, C.Chu infirmière Avril 2007 ANNEE B777 B747 A340/330 Dr G.Desmaris, C.Chu infirmière Avril 2007 2002 2003 2001 46 54 0 2004 2002 100 0 0 2005 2003 96 3 1 2006 2004 77 14 8 2005 97 0 3 2006 83 2 15 50 HIGHER EXPOSED AICREW IN 8 ROLLING MONTHS FRSG LISTE DES PN LES PLUS EXPOSES SUR 8 MOIS GLISSANTS 21/05/07 07:52:38 MOIS : 03 ANNEE : 2007 DOSES EN (MILLI SVT) : IMPRESSION : (O POUR IMPRIMER) 01 - 35200892 FLE SEVERINE STEWARD/HOTESSE 03,8088 02 - 31971301 CHO SIMON CHEF DE CABINE 03 - 32173785 SAN CHIZURU STEWARD/HOTESSE 03,7482 04 - 15591940 TOT MIKI STEWARD/HOTESSE 03,7457 05 - 16178485 NIS KAYO STEWARD/HOTESSE 03,6620 06 - 32173886 SUZ KAORU STEWARD/HOTESSE 03,6464 07 - 32083152 NAK MIKI STEWARD/HOTESSE 03,6342 08 - 31214701 OHO WAKI STEWARD/HOTESSE 03,6317 09 - 31420421 PIS CAROLE STEWARD/HOTESSE 03,6305 10 - 33356276 MOR ERIC OFFICIER PILOTE 11 - 14782594 TAN MASAKO STEWARD/HOTESSE 03,5849 12 - 32174391 TAD EMIKO STEWARD/HOTESSE 03,5847 03,7692 03,6079 CONCLUSIONS French system SIEVERT www.sievert-system.org - replies fully to all operational constraints and provides a correct application of regulation - is currently the only one tool able to compute the doses received during a solar flare Data show that Air France’s crew steadily employed on northern intercontinental flights - can receive significant annual effective doses - nevertheless smaller than the permissible limit